Rental Property ROI Calculator
Analyze cash flow, Cap Rate, and Cash on Cash return for real estate investments.
Investment Analysis
Understanding Rental Property Investment Metrics
What is Net Operating Income (NOI)?
Net Operating Income (NOI) is a calculation used to analyze the profitability of income-generating real estate investments. NOI equals all revenue from the property, minus all necessary operating expenses. NOI is a before-tax figure, appearing on a property's income and cash flow statement, that excludes principal and interest payments on loans, capital expenditures, depreciation, and amortization.
Cap Rate Explained
The Capitalization Rate (Cap Rate) is a fundamental metric used in the world of commercial real estate. It indicates the rate of return that is expected to be generated on a real estate investment property. It is calculated by dividing the Net Operating Income (NOI) by the current market value or acquisition price of the property.
Formula: Cap Rate = NOI / Purchase Price
A "good" Cap Rate varies by market and property type, but generally, investors look for 4% to 10%. A higher Cap Rate implies higher returns but often comes with higher risk.
Cash on Cash Return vs. ROI
While standard ROI looks at the total return, Cash on Cash Return is specific to the actual cash you have invested. This is crucial for leveraged investments (where you use a mortgage).
For example, if you buy a $300,000 house but only put $60,000 down, your Cash on Cash return measures your annual cash flow against that $60,000, not the full $300,000. This metric is the truest measure of how hard your money is working for you.
How to Estimate Expenses
One of the biggest mistakes new investors make is underestimating expenses. Always account for:
- Vacancy: Even in hot markets, tenants move out. Budgeting 5-8% allows for turnover time.
- Maintenance: Roofs leak and toilets break. Setting aside 5-10% of monthly rent ensures you have funds for repairs.
- Management Fees: Even if you self-manage now, calculating this expense (usually 8-10%) helps determine if the deal is good enough to eventually outsource.